Envizen's Home Roam TV lets you watch whatever's playing on your TV, cable box, Blu-ray or other player on a portable wireless display, but the resolution is poor and you have no control over the video source.

It’s not as small or stylish as Apple’s tiny MP3 players, but the Sansa Clip Zip provides an impressive array of features—including an FM radio, voice recorder, workout timer and microSD card slot—at very reasonable prices.